已知(x-12)=169,(y-1)³=-0.125,求根号x-根号2xy-3次根号4y+x的值
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![已知(x-12)=169,(y-1)³=-0.125,求根号x-根号2xy-3次根号4y+x的值](/uploads/image/z/372817-1-7.jpg?t=%E5%B7%B2%E7%9F%A5%28x-12%29%3D169%2C%28y-1%29%26%23179%3B%3D-0.125%2C%E6%B1%82%E6%A0%B9%E5%8F%B7x-%E6%A0%B9%E5%8F%B72xy-3%E6%AC%A1%E6%A0%B9%E5%8F%B74y%2Bx%E7%9A%84%E5%80%BC)
已知(x-12)=169,(y-1)³=-0.125,求根号x-根号2xy-3次根号4y+x的值
已知(x-12)=169,(y-1)³=-0.125,求根号x-根号2xy-3次根号4y+x的值
已知(x-12)=169,(y-1)³=-0.125,求根号x-根号2xy-3次根号4y+x的值
x=169+12=181
y-1=-2分之1
所以:y=1-2分之1=2分之1
√x-√2xy-³√4y+x
=√181-√2×181×2分之1-³√4×2分之1+181
=-³√183